Home / 521,551,999.20-782,327,998.80-337,885,989.60

Finding the Fourth Proportional to 521,551,999.20, 782,327,998.80 and 337,885,989.60

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Solution

The fourth proportional to 521,551,999.20, 782,327,998.80 and 337,885,989.60 is: 506,828,984.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,551,999.20 : 782,327,998.80 = 337,885,989.60 : x
  2. Step 2: Convert to fraction form
    521,551,999.20/782,327,998.80 = 337,885,989.60/x
  3. Step 3: Cross multiply
    521,551,999.20x = 782,327,998.80 × 337,885,989.60
  4. Step 4: Simplify right side
    521,551,999.20x = 264,337,670,066,325,600
  5. Step 5: Solve for x
    x = 264,337,670,066,325,600/521,551,999.20
  6. Step 6: Final answer
    x = 506,828,984.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.